SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function mapAdd (alias res) (children 1)
     ExpressionList (children 2)
      Function map (children 1)
       ExpressionList (children 4)
        Literal Float64_1
        Function toFloat32 (children 1)
         ExpressionList (children 1)
          Literal Float64_1.1
        Literal Float64_2
        Literal UInt64_1
      Function map (children 1)
       ExpressionList (children 4)
        Literal Float64_1
        Literal Float64_2.2
        Literal Float64_2
        Literal UInt64_1
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier res
